A solution of FeCl_3 when treated with K_4[Fe | vedclass

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(D) The reaction between $FeCl_3$ and $K_4[Fe(CN)_6]$ is a standard test for $Fe^{3+}$ ions.When $Fe^{3+}$ ions react with potassium ferrocyanide,$K_4

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$Fe_4[Fe(CN)_6]_3$

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(D) The reaction between $FeCl_3$ and $K_4[Fe(CN)_6]$ is a standard test for $Fe^{3+}$ ions.When $Fe^{3+}$ ions react with potassium ferrocyanide,$K_4[Fe(CN)_6]$,they form a deep blue complex known as Prussian blue.The chemical reaction is: $4Fe^{3+} + 3[Fe(CN)_6]^{4-} \rightarrow Fe_4[Fe(CN)_6]_3$.The resulting compound is ferric ferrocyanide,$Fe_4[Fe(CN)_6]_3$,which is responsible for the Prussian blue color.

$A$ solution of $FeCl_3$ when treated with $K_4[Fe(CN)_6]$ gives a Prussian blue precipitate due to the formation of:

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